404255311 has 8 divisors (see below), whose sum is σ = 406371024. Its totient is φ = 402144960.

The previous prime is 404255263. The next prime is 404255321. The reversal of 404255311 is 113552404.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 404255311 - 2¹¹ = 404253263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404255321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 326185 + ... + 327421.

It is an arithmetic number, because the mean of its divisors is an integer number (50796378).

Almost surely, 2^404255311 is an apocalyptic number.

404255311 is a deficient number, since it is larger than the sum of its proper divisors (2115713).

404255311 is a wasteful number, since it uses less digits than its factorization.

404255311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2681.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 404255311 is about 20106.1013376537. The cubic root of 404255311 is about 739.4098722235.

The spelling of 404255311 in words is "four hundred four million, two hundred fifty-five thousand, three hundred eleven".